Spark-arrester



' (No Model.)

J. D. AKLEY.

SPARK ARRBSTER.

I Patented Mar. 28, 18 82.

INVEINTR WITN ESSES ATTORNEYS N. PETERS. Phuwtilhogmpner. wa-hiuglqn, D C,

UNITED STATES PATENT OFFICE.v

JAMES DJAKLEY, OF AIILEGHENY CITY, PENNSYLVANIA.

SPARKWARRESTER.

SPECIFICATION forming part of LettersvPaLtent No. 255,558, dated March 28, 1882.

Application lcd July 23, 1881. (No model.)

To all whom it may concern:

Be it known that I, JAMES I). AKLEY, a citizen of the United States, resident of Allegheny City, in the county of Allegheny and State of Pennsylvania, have invented a new and valuable Im provenientiu Spark-Arresters; and I do hereby' declare that the following is a full,clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part ot' this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a vertical longitudinal section ot' my invention, taken through line a z of Fig. 2. Fig. 2 is a horizon tal section ofthe same, taken on the line g/ y of Fig. 1.

This invention relates to improvements in spark arresters; and it consists in the construction and novel arrangement of parts, as hereinafter set forth, whereby the sparks are arrested and a better draft provided.

In the annexed drawings, the letter a represents a cylinder ot' sheet orcast metal,which is to he placed within alocomotivesmoke-box, and may be supported on feet a'. At theend toward the boiler the cylinder has a iiue-sheet, b,\through the holes cot' which the boiler-dues project. u

Within the cylinder, at the middle of the sheet b, is placed against the sheet b a set of vertical angle-plates, d, consisting of a large V-sbaped middle plate, e, and bolted to this two smaller side plates, f. Around these plates is located a flaring or funnel-shaped chamber, g, which fits snugly against the sheet b at its larger or open end, and comes Vunder the smoke-stack hole k at its smaller end. At this end the chamber g has a hole, l, aligned with the hole k, and also a door, m, forentrance within.

Secured within the cylinder a,just above the hole Z of the chamber g, is a yoke, n. Through this yoke n and the holes kand Zthe smoke-stack p passes down into the chamber g. At its lower end, g, the stackphas on the inside the upward-Haring ring or inverted fun,-

nel 1', which forms an opening, s, into the stack, ot smaller diameter than that of the stack itself'. By the arrangement of the plates, as described and shown, the draft from the iines is equalized, since the presence and position ot' these plates gives the same distance from the stack to all the ues. At the same time the plates break up the sparks, so that they will be more quickly deadened. The daring chamber guides the draft and sparks to the stack. The funnel within the stack, by its 'reduced opening,prevents the back-pressure ofthe air from above, thus facilitating the draft. To bring the exhaust-steam inito this cylinder, two registering openings, t and 0, are made in the bottoms of the cylinder'a and the chamber g, the latter opening being smaller. In these openings is placed the inverted funnel a, divided into two compartments by the diaphragm w. Through this funnel a the exhaust-steam passes, deadening the sparks.

Horizontal angular plates and horizontal tubes and bars or battles have been employed to arrest sparks and ashes in the smoke boxes and stacks of locomotives. Draft-equalizers have also been employed in various classes of engines. Neither is broadly claimed herein.l Protection is asked only for the construction hereinafter claimed.

and desire to secure by Letters Patent, is-

In a sparkarrester, the combination, with the c y linder ct, flue-sheet b, and smoke-stack p, having the inverted funnel r at its lower end, ot' the daring chamber g, the funnel u, and the vertical angle-plates dd and e, confor the purposes set forth.

` In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES D. AKLEY. Witnesses:

J As. W. DRAPE, J. W. FLEMIEKEN.

Havingdescribed myinvention,whatIclaim,`

structed and operating substantially as and 

